[seqfan] Re: [math-fun] Triangular+Triangular = Factorial

Georgi Guninski guninski at guninski.com
Sat Sep 11 23:25:59 CEST 2010

On Sat, Sep 11, 2010 at 01:36:21PM -0600, Richard Guy wrote:
> Well done!  Now can someone show that there
> ARE solutions for the other values of  z ??   R.

for z<2500 and not in A076680 another nontrivial solution is z=546.

probably relatively moderate amount of elliptic curve factoring will
pick up the low hanging fruit.

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